      [:.code-fragment__result
       {:visibility "visible"}]]
     [:.code-fragment__button
-     {:visibility   "hidden"
-      :height       "19px"
+     {:display "none"
       :padding-left "6px"
       :margin-left  "6px"
       :border-left  "1px solid #cdd8df"

     :background-color code-hover-background-color}]
   [:.code-fragment
    {:background-color common/white-background-color}
    [:.code-fragment__result
     {:visibility "hidden"
      :color "#b4b4b4"}] ;; Was common/medium-gray

      :color        common/blue-modern-color}]
    [:&:hover
     [:.code-fragment__button
      {:display "grid"}]]
    ]])

;; Terminology:
